Printing-press



(No Model.) 6 Sheets-Sheet 1.

E. H. WILGOMB. PRINTING PRESS.

No. 548,411. j Patented Oct. 22, 1895.

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6 Sheets-Sheet 2.

(No Model.)

E. Hy.' WILGMB.

PRINTING PRESS.-

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(No Model.) 6 Shets-Sheet 3.

E. H.' WILGOMB.- PRINTING PRESS.

No. 548,411. atented l 22, 1895.

1 (No Model.) l 'sheets-sheet 4.

E. H. WILCMB. PRNTING PRESS.

No. 548,411. Patented oct. 22, 1895.

ANDREW lBHAHAN. PKUTOUTKRWASNJHGTDN. D C.

(No Model.) @sheets-sneer 5.

E. H. WILGOMB. PRINTING PRESS;

No. 548,411. Patentd Oct. 22, 1895.

ANDRLW EGRAMM.PHOTO-UNUWASHINGTQYDL (No Mode-1.) 6 Sheets-Sheet 6. E. H. WILGUMB.

PRINTING PRESS.

No. 548,411. Patented 0G13. 22, 1895.

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UNiTED STATES PATENT GEEICE.

EDGAR H. WILCOMB, OF WORCESTER, MASSACHUSETTS.

PRINTING-PRESS.

SFECIFICATION forming part of Letters Patent No. 548,411, dated October 22, 1895. Application filed October 5, 1893. Serial No. 487,271. (No model.)

To all whom t may concern.-

Be it known that I, EDGAR H. WlLcoMn, a citizen of the United States, residing at lVorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Printing- Presses, of which the following is a specilication, reference being had therein to the accompanying drawings.

My invention relates to doublecylinder perfecting printing-presses, and specially to the operating mechanism whereby a uniform movement of the beds and c ylinders may be secured, the mechanism being particularly applicable to presses of the two-revolution cylinder type, and while shown in connection with a press having two inclined and movable type-beds is not limited in its application thereto.

In the accompanying drawings, Figure l is a front elevation of a press embodying my improvements. Fig. la is a detail view of the operating mechanism in connection with the two typebeds. Fig. 2 is a detail View of the means for raising and lowering the impression-cylinders. Figs. 3 and show the mechanism for severing the paper when a continuous roll is used. Fig. is an end View with a part of the under frameremoved. Fig. 6 isa section in line os @c of Fig. l.

In the drawings the frame of the press is shown at A, consisting of side framessuitably supported and braced. The frame is provided with inclined waysaa for the support ofthe traveling beds, thesebein g shown at aa with interposed rollers between the ways and beds. The beds are inclined and face each other. Standards b b extend across between the side frames below the position of the cylinders and serve to further support the movable beds, being provided with bearingrollers c in contact with the bed. The beds carry racks on their lower faces at each side, as shown at CZ el, and the racks are in mesh with gear-wheels e e, carried on a shaft extending between the side frames and having bearings therein. 'The shaft f is provided centrally with a gear-wheel g, and this gear-wheel derives its motion from the ends h. of asliding frame c. This frame is provided centrally thereof on its base with a manglerack t', with which meshes a gear-wheel having a loose connection Z with the shaft A', by which the machine is driven through a suitable band-wheel and source of power. The frame c has two extending parts h provided with gear-teeth on their upper faces. These racked ends are supported by hangers m, depending from the shafts f and braced to cross-standards b b, and mesh with the gears g to reciprocate the beds.

To the shaft A is secured a gear-wheel fn, meshing with a larger gearfu on the shaft B', passing through the machine and projecting beyond the side frames, as shown. A bevelgear q is secured to this shaft, as shown in Figs. l and 5, which, through the inclined shafts r r and bevel-gears carried on each end thereof rotate the cylinders B B. These cylinders are of the two-revolution type, having vertical movement in relation to the beds, with the described mechanism for rotating them independently of the beds while out of engagement therewithwhen the beds are movin gin the opposite direction, the said cylinders Vdropping into engagement with the racks of said beds and moving uniformly therewith on the impression-stroke of the beds. The beds are provided with teeth u, which engage the teeth of gearst on the cylinders.

The beds are provided with ink-tables, one for each bed,` projecting from the upper end thereof, and these tables receive the ink from a fountain and rollers n o', and the ink is distributed by ordinary angle-rollers g', located as shown in Fig. l, suitable form-rollers being also provided, as shown, and thus a proper supply of ink is transferred to the typeforms.

The im pression-cylinders, as described, are made vertically movable in brackets h, forming a part of the frame, which have open slots to receive the boxes of the journals of theimpression cylinders. The simple means for lifting and lowering the cylinders, as shown in Fig. 2, consistof a cam on the rear end of shaft B', against which two leversj bear, being pivoted at their lower ends to the frame and having pitmen j extending in opposite directions, one from each lever, to cranksl z', connected to eccentrics lc, and the bands of these eccentrics have extensions Z in the shape of jointed rods under spring-pressure for elevating the impression-cylinder. As the action ICQ is the reverse upon one side to that upon the other, the cam upon the shaft B has such a configuration as to operate upon one lever only at a time.

lVhen used from a continuons roll, the paper passes from the roll over a bearing-roller Z to the feed-rolls and from thence to ordinary traveling tapes 3 to the grippers of the impression-cylinder upon the right. As the paper passes around the impression-cylinder, the bed carrying the type-form aligns therewith and prints the paper upon one side, and the paper thence passes to thetraveling tapes 4, which carry the sheet across the center of the machine to the upper side of the impression-cylinder upon the opposite end of the machine, and from the tapes the sheet passes to the grippers of this second cylinder, around the same, being printed in the downward movement of the type-form carried by the bed upon this side of the machine, which thus prints the sheet upon the side opposite to that printed in the first instance, and from thence the sheet passes to the tapes 4', which deliver the sheet to the fly or folding machine, which may be of any ordinary or improved construction. It will be observed that as the paper is fed from a continuous roll it requires to be severed into sheets before it reaches the tirst impression-cylinder, and I provide for this by the mechanism shown in Figs. 3 and 4.-. 1n these figures, and particularlyin Fig. 3, I show the feed-rolls, which are of ordinary construction, and the paper 4passes between the surfaces of the two rolls 5 and 6, which are in contact, and from thence to the rollers 7 and 8, which are also in contact and slightly in advance of the first-mentioned rolls. The roll 5 is driven by a pawl-and-ratchet connection, as shown at 9, the pawl being carried upon the end of arm 10, which in turn is moved back and forth by a pitman 11, extending to one end of a walking-beam 12, the opposite end of the walking beam being connected to a second pitman 13, pivote/d to a lever 14, which carries a second pawl, and thus in the movement ofthe walking-beam a continuous movement is imparted to the feedroll 5, which communicates its motion to roll 8 of the second pair of feed-rolls by the gear 15 on the roll 5 meshing with the gear 16 on the roll 8. To facilitate an even speed of these rolls a balance-wheel may be placed upon a projection of the ratchet-shaft. The

walking beam 12 is moved on its pivot 17 by means of an eccentric, which is rotated by a chain belt 18 from the shaft B', and the said eccentric communicates its motion through a strap 19, which encircles it, and has an exten sheets is located between the two sets of feedrollers, as shown in Fig. 3. This knife has a simple cutting-blade supported in guides, so as to move vertically and operate in connection with a cutting-bar 21 to sever the sheets of paper. The knife is marked 22 and its guides 23.' The knife is operated automatically at the proper time by means of a lever 24, pivoted at 25, and having a pitman 2G connecting the end of said lever toa lever 27, the free end of which is operated by a cam on theshaft B', which I will designate as the cntter-cam, at 29. This press is designed to be fed from a roll of paper, as a web-press orby hand, using separate flat sheets. In the latter case the sheets to be fed from the inclined table at the left, Fig. 1,pass between the rollers, as in the first case, the cutter being disconnected.

1What- I claim is- 1. In combination, in a printing press, a supporting frame, inclines thereon facing each other, beds on said inclines, and cylinders, one of said parts on each side having reciprocating movement in relation to the other, a driving shaft, a horizontally movable frame, racks carried by said frame and intermediate driving connection between said racks and the reciprocating printing part, substantially as described.

2. In combination, in a printing press, a supporting frame, inclines thereon facing each other, beds on said inclines and cylinders over the beds, a horizontally movable fratrie, racks carried thereby, racks on the beds and double gears between the bed racks, and frame racks, substantially as described.

3. In combination with a printing press, feed rolls for the web of paper, operating means for the roll 5 consisting of the pawls and ratchet, a gear connection to the roll 8, a pivoted beam 12, links carried thereby and connected to the pawls, a strap 19, operating means therefor and an adjustable connection between the strap and beam 12, substantially as described.

In testimony whereof I aftix my signature in presence of two witnesses.

EDGAR H. WILCOMB. Witnesses:

E. HELEN JOHNSON, ELLA J. EsTABRooK.

IOO 

